Water-swivel.



K. BRO0KS.-

' WATER SWIVEL. APPLI'OATIOH FILED AUG.17, 1906.

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APPLICATION FILED AUG. li 1 9 0 6.

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PATENTED DEC. 10, 1907.

UNITED STATES PTENT OFFICE.

KARMELL BROOKS, OF NEW YORK, N. Y.

WATER- To all whom it may concern:

Be it known that I, KARMELL BROOKS, a citizen of the United States, and resident of New York, in the county of New York and State of New York, have invented a certain new and useful Water-Swivel, of which the following is a specification.

My invention relates to that class of water swivels designed for use in connection with rotary well-drilling machines where water is conducted under pressure from a pump to the point of a drill secured to the lower end of a rotating tube.

My invention is embodied in certain features of construction, arrangement and combination of parts as hereinafter described and claimed and illustrated in the accompanying drawing, in which Figure 1 is in part an elevation and in part a vertical section of the invention. Fig. 2 is a transverse section on the line X X of Fig. 1. Fig. 3 is a cross-section on the line Y Y of Fig. 1.

The numeral 3 indicates a horizontal head provided with tubular extensions 4 and 5 which are arranged vertically and alined with an opening or bore extending through the head proper. This head or disk 3 is incased by a shell 6 which is made in two parts 8 and 9, the same having lateral flanges provided with perforations that receive bolts 7. The lower half 9 of the shell is provided with a chamber 10 in which is located a ball check valve 11 whose function is to close or seal the inlet opening 12 at the upper side of the chamber 10, said inlet registering with the tubular extension 4 of the head 3. The lower portion of the disk 10 is traversed by a rod 13 which is so located and arranged relative to the ball valve 11 that the latter is prevented when in the lower position from choking the passage 20 leading downward from the chamber 10. The lower portion 9 of the casing is connected by a screw joint with a revolving part 29 to which the drill rod 30 is attached in the usual manner. Upon the part 29 is keyed a spur gear 31 that meshes with a driving gear 31 by which means rotation is imparted to the drill and also to the casing.

To relieve friction between the head 3 and the parts of the shell or casing 9, rollers 15 are arranged as shown, those on the upper side running in coincident grooves in the casing and the head and those on the lower side running in the grooves in the lower portion of Specification of Letters Patent.

Application filed August 17 1906- Serial No. 330851.

SWIVEL.

Patented Dec. 10, 1907.

the casing. When the bar 29 is rotated the shell 9 rotates with it as before stated. A grooved pulley 14 is fast on the tubular extension 5 of the head and a belt runs therefrom to a corresponding pulley that is fast on a vertical shaft having a bevel gear 34. The latter meshes with a larger bevel gear 35 which is keyed on the shaft of the shot receptacle of the shot feeding mechanism 36 to which the part 5 is attached. The part 36 is provided with two inlets 46, 47, which are respectively for admission of water and gravel. It is not always necessary to use the shotfeeder and in such case the tubular portion 5 of the swivel head 3 is connected directly to the water head. The bearings are lubricated by oil introduced through the opening 17 in the upper portion of the shell or casing", vertical passages 18 being also provided in the head 3 through which the oil may flow to the lower bearings. To prevent access of water and sediment to the bearings I employ the packing gland 20 which, as shown in Fig. 1, encircles the tubular lower bearing of the swivel head 3. By this means water is effectually prevented from reaching the bearings or revolving members. When returning the drill tool to the well there is sometimes a back pressure of water and an overflow of the same whereby it is forced into the swivel mechanism, thus flooding it and washing the lubricant. The ball valve 11 is employed to prevent this result. Thus when back pressure of water occurs the ball valve 11 being made of such material that it will float in water, rises and thus seals the mouth or inlet 12, as indicated by dotted lines Fig. 1. In other words it thus prevents water passing further up the passage in the casing. Again, when the ball 11 falls in the chamber 10, the transverse rod 13 prevents it from seating in the outlet 20, orin other words holds it away therefrom so that it cannot close more than one-half or two-thirds of the outlet and leaves a free passage for the flow of water and gravel or shot from the shot feed 36 or from any other source.

What I claim is 1. The combination with the casing comprising separable parts and having a chamber 10 in its lower portion, and means for rotating said casing of a disk-like head inclosed by the casing and having a central vertical passage and tubular extensions alined therewith, a floatative valve arranged in the aforesaid chamber and adapted to seat upward therein, and means for preventing the valve closing the lower outlet of the chamber, as shown and described.

2. The combination with the rotatable casing having upper and lower connected chambers, of a head arranged in said casing and having a central passage, of a floatable valve arranged in the lower chamber of the casing and adapted to seat upward as and for the purpose specified.

8. The combination with a casing comprising separable parts and means for rotating it, of the head having a central passage and tubular extensions 4, 5, alined with such passage, a shot-feed mechanism mounted on.

scribed.

Signed at New York, in the county of New York and State of New York this 14th day of August A. D. 1906.

KARMELL BROOKS.

Witnesses:

F. BARRETT, J. O. BROOKS. 

